﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp4
{
    class Program
    {
        static void Main(string[] args)
        {
            Aircraft aircraft = new Aircraft("飞机");
            aircraft.fiy();

            Bird bird = new Bird("鸟");
            bird.fiy();

            Superman superman = new Superman("超人");
            superman.fiy();
        }
    }
}
